Some hypertensive patients, blood pressure control has been relatively good, but when the temperature drops, blood pressure went up again, the patient at this time will begin to doubt whether the disease is serious, or antihypertensive drugs do not work? Existing research has confirmed that the climate has a great impact on blood pressure. In winter, the body needs to keep warm by contracting blood vessels, vascular resistance increases, and blood pressure rises. In fact, the temperature drop in blood pressure is inevitable phenomenon, blood vessels also have a “thermal expansion and contraction” characteristics, that is, when the cold blood vessel contraction, will cause the blood pressure rise; days hot blood vessel expansion, resulting in a drop in blood pressure. Autumn and winter is a good period of hypertension, the human body by the cold stimulation, will lead to sympathetic nerve excitation, vasoconstriction, blood pressure rise. Hypertensive patients are very prone to morbidity, so hypertensive patients must pay special attention in this season and know how to do a good job of prevention. How to prevent blood pressure from spiking when the weather turns cold? 1, grasp the good weather after the turn of the cold weather and dietary principles of tonic scientifically formulated tonic program: the use of low-salt dietary therapy, daily salt intake ≤ 5 grams. Eat more fungus, mushrooms, black beans, soybeans and other complementary foods. Sea cucumber belongs to the category of nourishing Yin tonic, which can enhance physical strength without causing high blood pressure, and is also an excellent tonic. At the same time, hypertensive men should also pay attention to eat less spicy food. This group of people should choose a light diet. Cold people like all kinds of hot pot, including spicy hot pot, spicy hot pot, brush meat, etc., these foods for hypertensive patients, salt content is too high, should try to eat less or even do not eat. If you feel the taste of the daily diet is light, it is recommended that more vinegar, mustard, sesame oil, onions and other condiments to increase the flavor, by MSG, soy sauce, hot sauce, etc. Do not use. 2, pay special attention to do a good job of self-prevention to pay attention to warmth and cold. Cold stimulates vasoconstriction, easy to cause blood pressure; pay attention to wear, prevent cold stimulation, avoid walking in the wind; pay attention to the morning exercise before you must take antihypertensive drugs and do a good job of warmth, blood pressure is not stable patients should not go out in the cold weather morning exercise. In short, it is very important to keep warm. 3, must do a good job of blood pressure monitoring It is recommended that patients with hypertension measure their blood pressure three times a day, i.e., once in the morning, once at noon and once at night. In this way, you can grasp the change pattern of your blood pressure and understand your condition. After the blood pressure is stabilized, you can extend the interval between measurements, measurement of blood pressure need to pay attention to: after the activity should be at least 5 minutes of rest, the environment should be quiet and comfortable, the seat is appropriate, the arm and the position of the heart and so on; the traditional mercury blood pressure is the international doctors common blood pressure measuring instrument. What should I do if my blood pressure rises in cold weather? Cold weather blood pressure is higher some not drugs do not work, patients should not panic and rush to change the drug. As long as the blood pressure continues to rise above 20 mmHg, the medication must be adjusted. It is recommended that patients within the range of 20 mm Hg, you can consult with your doctor to take a dosage or add drugs to avoid greater fluctuations in blood pressure. As the temperature drops in the fall and winter, adrenaline levels rise in the body and blood vessels on the surface of the body constrict to reduce heat distribution. At the same time, adrenaline accelerates the heart rate and increases cardiac output, which can lead to an increase in blood pressure. Some hypertensive patients often suffer a stroke due to a sharp rise in blood pressure caused by cold stimulation. Therefore, when the weather turns cold, it is recommended that people with high blood pressure go to the hospital in a timely manner to have their blood pressure tested and their medication adjusted in a timely and rational manner. Once there are signs of the disease should be treated as soon as possible, if the best treatment period is missed, it will increase the difficulty of treatment.